Metal culvert-pipe.



I J. B. JARMIN.

METAL GULVERT PIPE. APPLICATION FILED JAN. 23, 1909.

Patented M128, 1910.

UNITED sTATEs '1 OFFICE.

JAMES B. JARMIN, or SPOKANE, WASHINGTON, ASSIGNOR or ONE-HALF TO JOHN s.

BEALL, or PORTLAND, OREGON.

METAL CULVERT-PIPE.

county of Spokane, bltate of Washington, g have invented a new and useful Metal Culrert-Iipe, of which the following is a specilicatiou.

.I his invention relates to metal culverts for use under many dltlerent circumstances and conditions andthe objects of the invention are to provide a knock down metal culvert which can be transported to the place at which it is to be iised and there set up and placed in position giving the same results that a solid metal pipe would give. further object is to provide a metal culvert composed of an upper and lower section so arranged that the lower edges of the upper section will rest on suitable shoulders near the upper edges of the lower section,

the said sections then being suitably fastened.

together and, when so fastened. forming a metal culvert pipe without projections and" of proper cylindrical constructitm that can be properly position.

A further object is to provide. a metal culvert pipe consisting of an upper and lower section that can he so assembled on I the round as to be water tight and till all the requirements or a. solid metal pipe.

I attain these objects by the novel eoin position and arrangement of parts as hereinafter fully described and illustrated in the accompanying drawing in which Figure I is a side and end View of a portion of assembled pipe. Fig. II showsa portion of the pipe already assembled and a portion of thetop half of the pipe ready to be placed in position over the corresporuling'lower half. Fig. III. shows a detailed cross section of the JOlnl' connecting the two halves of pipe.

Similar letters refer to'similar parts throughout. the several figures.

The pipe may be constructed of any suitable metal either plain or corrugated and has a general cylindrical tor-mas shownpin Fig. I.

E is the lower edge ot the upper half A and rests directly upon otl'set or shoulder (1 on lowerhalf B thus, any

downward pressure upon top half A is transm tted directly to lower halt "B inset in place and tamped into 3 Specification of Letters Patent.

Patented Mar. 8, 1910.

Application filed January 23, 1909. Serial No. 473,900.

stead of falling upon the rivets, bolts or other means used to fasten the two halves be used.

-i projections so that nothing will prevent proper tamping of filling material about said pipe, or the process may be reversed and the same results obtained by' having lower edges of top section A inside top i edges of lower section B with ofi'sets or shoulders to correspond.

If corrugated pipe is used as is shown in Figs. I'and II the corrugations are continuous and need not.be dispensed with at joints, thus giving a corrugated pipe its full strength instead of weakening the same.

Top section A need not. be placed in position directly over a corresponding lower section B but maybe so placed or disposed that the eircular or vertical joints will be broken. v This will give greater strength to the pipe, if desired, and by the use of a short semi-circular section at each end of an assembled pipe the ends thereof will be left as even and regular as the ends shown in Fig. I.

My claims are as follows:

1. A metal culvert pipe consisting of 1 upper and lower sections, said lower section being provided with a depression on each side thereof forming a shoulder, said shoulder being adapted to support said upper section, substantially as and for the purpose described. l

' QJA metal -culvert; pipe consisting of upper and lower seetipns, shoulders formed i integrally with both sides of said lower sections, said-shoulders being adapted to sup- & port said upper section, said shoulders bein formed by depressions, s bstantially as b described.

' JAMES B. J ARMTN.

Witnesses LAWRENCE H. BROWN,

, Ion C. Norman.

1 B above the shou der C, when pipe is assembled, 1s mside said pipe, thus leavm 

